Sumitomo Mitsui Trust Group’s Iron Mountain IRM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $113M | Sell |
896,560
-37,162
| -4% | -$4.56M | 0.06% | 271 |
|
|
2026
Q1 | $95.4M | Buy |
933,722
+26,834
| +3% | +$2.67M | 0.06% | 285 |
|
|
2025
Q4 | $75.2M | Sell |
906,888
-27,864
| -3% | -$2.61M | 0.04% | 354 |
|
|
2025
Q3 | $95.3M | Buy |
934,752
+10,338
| +1% | +$996K | 0.05% | 308 |
|
|
2025
Q2 | $94.8M | Sell |
924,414
-122,702
| -12% | -$11.6M | 0.06% | 308 |
|
|
2025
Q1 | $90.1M | Buy |
1,047,116
+136,393
| +15% | +$13.1M | 0.06% | 295 |
|
|
2024
Q4 | $95.7M | Buy |
910,723
+10,160
| +1% | +$1.19M | 0.06% | 289 |
|
|
2024
Q3 | $107M | Sell |
900,563
-3,293
| -0.4% | -$352K | 0.07% | 258 |
|
|
2024
Q2 | $81M | Sell |
903,856
-52,333
| -5% | -$4.24M | 0.06% | 315 |
|
|
2024
Q1 | $76.7M | Sell |
956,189
-7,170
| -0.7% | -$519K | 0.05% | 373 |
|
|
2023
Q4 | $67.4M | Buy |
963,359
+12,656
| +1% | +$794K | 0.05% | 389 |
|
|
2023
Q3 | $56.5M | Sell |
950,703
-12,613
| -1% | -$771K | 0.05% | 409 |
|
|
2023
Q2 | $54.7M | Sell |
963,316
-101,077
| -9% | -$5.53M | 0.04% | 444 |
|
|
2023
Q1 | $56.3M | Sell |
1,064,393
-395,926
| -27% | -$20.7M | 0.04% | 461 |
|
|
2022
Q4 | $72.8M | Sell |
1,460,319
-253,884
| -15% | -$12.8M | 0.06% | 382 |
|
|
2022
Q3 | $75.4M | Sell |
1,714,203
-104,253
| -6% | -$5.26M | 0.06% | 360 |
|
|
2022
Q2 | $88.5M | Buy |
1,818,456
+449,724
| +33% | +$23.7M | 0.07% | 325 |
|
|
2022
Q1 | $75.8M | Buy |
1,368,732
+26,641
| +2% | +$1.27M | 0.05% | 401 |
|
|
2021
Q4 | $70.2M | Buy |
1,342,091
+188,979
| +16% | +$8.93M | 0.04% | 447 |
|
|
2021
Q3 | $50.1M | Sell |
1,153,112
-47,993
| -4% | -$2.16M | 0.03% | 550 |
|
|
2021
Q2 | $50.8M | Sell |
1,201,105
-106,739
| -8% | -$4.48M | 0.03% | 551 |
|
|
2021
Q1 | $48.4M | Sell |
1,307,844
-60,232
| -4% | -$2.01M | 0.03% | 555 |
|
|
2020
Q4 | $40.3M | Sell |
1,368,076
-200,424
| -13% | -$5.56M | 0.03% | 590 |
|
|
2020
Q3 | $42M | Sell |
1,568,500
-116,295
| -7% | -$3.31M | 0.03% | 537 |
|
|
2020
Q2 | $44M | Buy |
1,684,795
+30,428
| +2% | +$768K | 0.03% | 529 |
|
|
2020
Q1 | $39.4M | Buy |
1,654,367
+144,417
| +10% | +$4.37M | 0.03% | 506 |
|
|
2019
Q4 | $48.1M | Buy |
1,509,950
+189,552
| +14% | +$6.21M | 0.04% | 498 |
|
|
2019
Q3 | $42.8M | Buy |
1,320,398
+72,146
| +6% | +$2.27M | 0.04% | 490 |
|
|
2019
Q2 | $39.1M | Buy |
1,248,252
+138,426
| +12% | +$4.54M | 0.03% | 513 |
|
|
2019
Q1 | $39.4M | Sell |
1,109,826
-103,190
| -9% | -$3.65M | 0.04% | 488 |
|
|
2018
Q4 | $39.3M | Buy |
1,213,016
+104,791
| +9% | +$3.44M | 0.04% | 460 |
|
|
2018
Q3 | $38.3M | Buy |
1,108,225
+34,538
| +3% | +$1.23M | 0.04% | 464 |
|
|
2018
Q2 | $37.6M | Buy |
1,073,687
+146,247
| +16% | +$4.94M | 0.04% | 451 |
|
|
2018
Q1 | $30.5M | Buy |
927,440
+12,236
| +1% | +$412K | 0.04% | 488 |
|
|
2017
Q4 | $34.5M | Buy |
915,204
+33,394
| +4% | +$1.33M | 0.04% | 448 |
|
|
2017
Q3 | $34.3M | Buy |
881,810
+7,688
| +0.9% | +$287K | 0.05% | 417 |
|
|
2017
Q2 | $30M | Buy |
874,122
+6,978
| +0.8% | +$244K | 0.04% | 452 |
|
|
2017
Q1 | $30.9M | Sell |
867,144
-28,305
| -3% | -$1M | 0.05% | 426 |
|
|
2016
Q4 | $29.1M | Buy |
895,449
+60,941
| +7% | +$2.03M | 0.05% | 432 |
|
|
2016
Q3 | $31.3M | Buy |
834,508
+19,071
| +2% | +$736K | 0.05% | 416 |
|
|
2016
Q2 | $32.5M | Buy |
815,437
+145,464
| +22% | +$5.29M | 0.06% | 381 |
|
|
2016
Q1 | $22.7M | Buy |
669,973
+28,899
| +5% | +$830K | 0.04% | 496 |
|
|
2015
Q4 | $17.7M | Sell |
641,074
-27,408
| -4% | -$804K | 0.03% | 555 |
|
|
2015
Q3 | $20.7M | Buy |
668,482
+17,169
| +3% | +$512K | 0.04% | 494 |
|
|
2015
Q2 | $20.2M | Buy |
651,313
+80,321
| +14% | +$2.81M | 0.04% | 537 |
|
|
2015
Q1 | $20.8M | Buy |
+570,992
| New | +$22M | 0.04% | 530 |
|
|
2014
Q4 | – | Sell |
-471,028
| Closed | -$15.4M | – | 886 |
|
|
2014
Q3 | $15.4M | Buy |
471,028
+99,951
| +27% | +$3.24M | 0.03% | 563 |
|
|
2014
Q2 | $12.2M | Sell |
371,077
-4,391
| -1% | -$119K | 0.03% | 591 |
|
|
2014
Q1 | $9.57M | Sell |
375,468
-6,903
| -2% | -$177K | 0.02% | 611 |
|
|
2013
Q4 | $10.8M | Sell |
382,371
-30,025
| -7% | -$769K | 0.02% | 607 |
|
|
2013
Q3 | $10.3M | Sell |
412,396
-808
| -0.2% | -$20.5K | 0.02% | 601 |
|
|
2013
Q2 | $10.2M | Buy |
+413,204
| New | +$13.3M | 0.02% | 594 |
|
Other funds holding IRM
Sumitomo Mitsui Trust Group's IRM Position: Q2 2026 in Review
Sumitomo Mitsui Trust Group reduced its Iron Mountain (IRM) stake by 4% in Q2 2026, selling an estimated $4.56M and leaving 896,560 shares worth $113M. The position accounts for 0.06% of the portfolio, ranked #271.
Sumitomo Mitsui Trust Group first reported a position in IRM in Q2 2013 and has held it in 52 quarters since. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.
- Sumitomo Mitsui Trust Group held 896,560 shares of Iron Mountain worth $113M as of Q2 2026.
- Sumitomo Mitsui Trust Group sold 37,162 Iron Mountain shares in Q2 2026, an estimated $4.56M.
- Iron Mountain made up 0.06% of Sumitomo Mitsui Trust Group's portfolio in Q2 2026, its #271 holding.
- Sumitomo Mitsui Trust Group first reported a position in Iron Mountain in Q2 2013 and has held it in 52 quarters since.
- 1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.
Based on Sumitomo Mitsui Trust Group's 13F filing for Q2 2026, filed 30 Jul 2026.